20931287

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:410

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 2252713

約数列:

[1, 13, 79, 89, 229, 1027, 1157, 2977, 7031, 18091, 20381, 91403, 235183, 264953, 1610099, 20931287]

約数ペア:

[(1, 20931287), (13, 1610099), (79, 264953), (89, 235183), (229, 91403), (1027, 20381), (1157, 18091), (2977, 7031)]